From 1a809b0931bc1bfe7a5aa7c2cbb34f595d291cc7 Mon Sep 17 00:00:00 2001
From: Dylan <331506+macdylan@users.noreply.github.com>
Date: Thu, 29 Jun 2023 12:03:34 +0800
Subject: [PATCH] Fix check multi filament valid (#1433)

* no need to check different filaments if using a multi-head printer

* bed temperatures warning
---
 src/libslic3r/Print.cpp | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/libslic3r/Print.cpp b/src/libslic3r/Print.cpp
index b5a349931e..21f577ed69 100644
--- a/src/libslic3r/Print.cpp
+++ b/src/libslic3r/Print.cpp
@@ -913,9 +913,29 @@ StringObjectException Print::validate(StringObjectException *warning, Polygons*
         return { L("No extrusions under current settings.") };
 
     if (extruders.size() > 1 && m_config.print_sequence != PrintSequence::ByObject) {
-        auto ret = check_multi_filament_valid(*this);
-        if (!ret.string.empty())
-            return ret;
+        if (m_config.single_extruder_multi_material) {
+            auto ret = check_multi_filament_valid(*this);
+            if (!ret.string.empty())
+                return ret;
+        }
+
+        if (warning) {
+            for (unsigned int extruder_a: extruders) {
+                const ConfigOptionInts* bed_temp_opt = m_config.option<ConfigOptionInts>(get_bed_temp_key(m_config.curr_bed_type));
+                const ConfigOptionInts* bed_temp_1st_opt = m_config.option<ConfigOptionInts>(get_bed_temp_1st_layer_key(m_config.curr_bed_type));
+                int bed_temp_a = bed_temp_opt->get_at(extruder_a);
+                int bed_temp_1st_a = bed_temp_1st_opt->get_at(extruder_a);
+                for (unsigned int extruder_b: extruders) {
+                    int bed_temp_b = bed_temp_opt->get_at(extruder_b);
+                    int bed_temp_1st_b = bed_temp_1st_opt->get_at(extruder_b);
+                    if (std::abs(bed_temp_a - bed_temp_b) > 15 || std::abs(bed_temp_1st_a - bed_temp_1st_b) > 15) {
+                        warning->string = L("Bed temperatures for the used filaments differ significantly.");
+                        goto DONE;
+                    }
+                }
+            }
+        DONE:;
+        }
     }
 
     if (m_config.print_sequence == PrintSequence::ByObject) {